JP2009099489A - Lighting body, film deposition method and film deposition apparatus in the same - Google Patents

Lighting body, film deposition method and film deposition apparatus in the same Download PDF

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JP2009099489A
JP2009099489A JP2007272194A JP2007272194A JP2009099489A JP 2009099489 A JP2009099489 A JP 2009099489A JP 2007272194 A JP2007272194 A JP 2007272194A JP 2007272194 A JP2007272194 A JP 2007272194A JP 2009099489 A JP2009099489 A JP 2009099489A
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mold
film forming
housing
film
light source
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JP5139025B2 (en
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Noriyuki Ito
則行 伊藤
Yosuke Fukazawa
陽介 深沢
Tadashi Fukui
正 福井
Takao Umezawa
隆男 梅澤
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Mitsuba Corp
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Mitsuba Corp
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Priority to JP2007272194A priority Critical patent/JP5139025B2/en
Priority to PCT/JP2008/002816 priority patent/WO2009050856A1/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/04—Coating on selected surface areas, e.g. using masks
    • C23C14/042—Coating on selected surface areas, e.g. using masks using masks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C45/0062—Joined by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C2045/0067—Joining parts moulded in separate cavities interposing an insert between the parts to be assembled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To make film thickness at the distal end of the light source thicker than that on the inner side face of the housing when a reflective film is formed on the inner side face of a housing and at the distal end of a light source while incorporating the light source in the housing. <P>SOLUTION: A first die 6 becoming a fixed die is provided with first and second film deposition apparatus 9, 10 equipped with first and second magnetron sputtering systems 9a, 10a; and a masking member 16 is provided at the opening of a target chamber 11a constituting the first film deposition apparatus 9. Following to a primary injection step, a first film deposition step by the first film deposition apparatus 9 and a second film deposition step by the second film deposition apparatus 10 are performed for the housing 4 held on a second die 6 while incorporating a bulb 3. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、車両等に搭載されるフロントランプ、ウインカー（サイドターンランプ）、テールランプ等の燈体、燈体における成膜方法および成膜装置の技術分野に属するものである。   The present invention belongs to the technical field of housings such as front lamps, turn signals (side turn lamps), and tail lamps mounted on vehicles and the like, a film forming method for the housings, and a film forming apparatus.

一般に、この種燈体のなかには、車両用に設けられるサイドウィンカーやフロントランプ等があり、このものでは、光源（バルブ、発光ダイオード等）が組み込まれる（支持される）ハウジング部に、レンズ部を突き合わせ、該突き合わせ部となる外周部位を一体化することにより形成されている。このような燈体を形成するにあたり、一対の金型を用いた型移動を伴う一次の射出工程により、一次成型体としてレンズ部とハウジング部とを成型し、これらを互いに突き合わせ、該突き合わせ部に二次の射出工程により樹脂材を射出することで一体化して燈体を成型するようにした、所謂中空体成型方法で射出成形することが提唱されている。
また、このような燈体では、ハウジング部の内側の面に、反射面となる金属膜を成膜することで、光源の光量を増加したり広い照射範囲が確保することができ、このような燈体を前記中空体成型方法により成型する場合に、第一、第二金型の何れか一方に成膜装置を組み込んで、中空体成型方法による成型工程の過程に成膜工程を組み込むようにして、作業性の改善、歩留まりの向上、品質の向上等を図るようにする方法が既に提唱されている。
一方、このような燈体のレンズ部は透光性樹脂材で形成されているため、光源が非点灯状態にあるとき、レンズ部を透して光源を目視できることになるが、近年、光源を発光ダイオードにしたり、反射面が成膜されたハウジング部の内側面やレンズ部の色と異なる色の光源を用いることがあり、このような場合では、非点灯時にレンズ部から光源が透ける状態で目視できて（見えて）しまい、意匠的に劣るという問題があり改善が求められている。 In general, there are side winkers, front lamps, and the like provided for vehicles in this type of housing. In this type, a lens part is mounted on a housing part in which a light source (bulb, light emitting diode, etc.) is incorporated (supported). It is formed by abutting and integrating the outer peripheral part that becomes the butting part. In forming such a housing, a lens part and a housing part are molded as a primary molded body by a primary injection process involving mold movement using a pair of molds, and these are abutted with each other. It has been proposed that injection molding is performed by a so-called hollow body molding method in which a resin body is injected by a secondary injection process to form a housing in an integrated manner.
Further, in such a casing, by forming a metal film as a reflection surface on the inner surface of the housing portion, the light amount of the light source can be increased or a wide irradiation range can be secured. When molding the casing by the hollow body molding method, a film forming apparatus is incorporated in one of the first and second molds, and the film forming process is incorporated in the molding process by the hollow body molding method. Thus, methods for improving workability, yield, quality, etc. have already been proposed.
On the other hand, since the lens portion of such a casing is formed of a translucent resin material, when the light source is in a non-lighting state, the light source can be seen through the lens portion. The light source may be a light-emitting diode or a light source with a color different from the color of the inner surface of the housing part or the lens part on which the reflective surface is formed. In such a case, the light source can be seen through the lens part when not lit. There is a problem that it is visible (visible) and inferior in design, and improvement is demanded.

前記問題を解決する一手段として、光源の先端部にハウジング部と同様に反射膜を成膜することで、非点灯時にレンズ部を透して光源を見たとき、光源の色がハウジング部の内側面と同じになり、光源がハウジング部と異なる色であっても目立つことがないようにすることが考えられ、この場合に、一次射出工程と二次射出工程とのあいだに成膜工程を設けて、ハウジング部の内側面と光源の先端部とを同時に成膜するようにして、燈体を高品質でしかも作業性よく成型するようにしたものが提唱されている。
ＷＯ２００６／０９８３０２号公報 As a means for solving the above problem, by forming a reflective film on the tip of the light source in the same manner as the housing part, when the light source is seen through the lens part when not lit, the color of the light source is It is conceivable to make the light source the same as the inner surface and not stand out even if the light source has a different color from the housing part.In this case, the film forming process is performed between the primary injection process and the secondary injection process. It has been proposed that the inner surface of the housing portion and the tip portion of the light source be formed at the same time so that the casing is molded with high quality and good workability.
WO 2006/098302

しかるに、前記従来のものは、光源とハウジング部とを同様の成膜条件で成膜しているため、光源に形成される反射膜の膜厚とハウジング部に形成される反射膜の膜厚とは同様の厚さになっている。このため、非点灯時に光源が目立ちにくくなるものの、レンズ部を透明樹脂材とし、光源をアンバー色として両者の色が大きく異なるような場合では、レンズ部を透して光源が目視できてしまうという問題が依然残っている。これに対処するには、光源の反射膜の膜厚を厚くすればよいが、前記従来の手法で対応しようとした場合では、ハウジング部と光源とを同時に同条件で成膜する構成であるので、ハウジング部の反射膜の膜厚も厚くなってしまう。このように、ハウジング部と光源とに膜厚の厚い反射膜を形成した場合、広い面積に反射膜が形成されるハウジング部側においては、ハウジング部を構成する樹脂材と反射膜とで熱収縮率が異なることから、反射膜が剥離してしまうという問題があり、ここに本発明の解決すべき課題がある。   However, since the conventional device forms the light source and the housing part under the same film forming conditions, the film thickness of the reflective film formed on the light source and the film thickness of the reflective film formed on the housing part Are the same thickness. For this reason, although the light source becomes inconspicuous when it is not lit, in the case where the lens part is made of a transparent resin material and the light source is amber and the two colors are greatly different, the light source can be seen through the lens part. The problem remains. In order to cope with this, the thickness of the reflective film of the light source may be increased. However, in the case where it is attempted to cope with the conventional method, the housing part and the light source are simultaneously formed under the same conditions. Further, the thickness of the reflective film in the housing portion also increases. Thus, when a thick reflective film is formed on the housing part and the light source, on the housing part side where the reflective film is formed over a wide area, heat shrinkage occurs between the resin material and the reflective film constituting the housing part. Since the rates are different, there is a problem that the reflective film is peeled off, and here is a problem to be solved by the present invention.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて光源の先端部とハウジング部の内側面とを成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して形成される燈体であって、光源の膜厚は、ハウジング部の膜厚よりも厚く成膜されている燈体である。
請求項２の発明は、予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、成膜装置による成膜工程は、光源の先端部のみを成膜する第一成膜工程と、ハウジング部の内側面と光源の先端部とを同時に成膜する第二成膜工程とが設けられている燈体における成膜方法である。
請求項３の発明は、第一成膜工程は、第二成膜工程において成膜される金属材料とは異なる金属材料を用いて成膜するように構成されている請求項２に記載の燈体における成膜方法である。
請求項４の発明は、予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、前記成膜装置は、第二金型側が開口する開口部が形成されたターゲット室を備えた第一、第二成膜装置で構成され、一方の成膜装置には、光源の基端部とハウジング部をマスキングするマスキング部材が設けられている燈体における成膜装置である。
請求項５の発明は、マスキング部材は、ターゲット室の開口部に設けられている請求項４に記載の燈体における成膜装置である。
請求項６の発明は、マスキング部材は、光源の先端部が嵌入する円筒状部を備えたリング状平板体で構成されている請求項４または５に記載の燈体における成膜装置である。
請求項７の発明は、予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、前記成膜装置は、一方の金型側が開口する開口部が形成されたターゲット室を備え、該ターゲット室には、光源の先端部に嵌入し、光源の基端部とハウジング部とをマスキングするマスキング部材が着脱自在に設けられている燈体における成膜装置である。 The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems, and the invention of claim 1 is a first mold in which a lens part molded in advance is held. A film forming apparatus for forming a reflection film is provided on the other hand, while a base end portion of a light source is inserted and fixed in a housing portion held by the second mold, and the film forming apparatus is based on mold movement of the first and second molds. The housing is formed by forming a film on the front end portion of the light source and the inner side surface of the housing portion with the housing portion facing the housing portion, and then injection-molding a resin material at a butt portion between the lens portion and the housing portion. The film thickness of the light source is a casing formed to be thicker than the film thickness of the housing part.
According to the second aspect of the present invention, a film forming apparatus for forming a reflective film is provided on a first mold on which a lens part molded in advance is held, while a base end of a light source is provided on a housing part held on the second mold. The part is inserted and fixed, and the film forming device is made to face the housing part based on the movement of the first and second molds, and then the resin material is injection-molded at the abutting part between the lens part and the housing part In forming the housing, the film forming process using the film forming apparatus includes the first film forming process for forming only the front end portion of the light source, and the inner side surface of the housing portion and the front end portion of the light source are simultaneously formed. A film forming method in a housing provided with a second film forming step.
According to a third aspect of the present invention, the first film formation step is configured to form a film using a metal material different from the metal material formed in the second film formation step. It is the film-forming method in a body.
The invention according to claim 4 is provided with a film forming apparatus for forming a reflective film on the first mold in which the lens part molded in advance is held, while the base end of the light source is provided in the housing part held in the second mold The part is inserted and fixed, and the film forming device is made to face the housing part based on the movement of the first and second molds, and then the resin material is injection-molded at the abutting part between the lens part and the housing part In forming the housing, the film forming apparatus is composed of first and second film forming apparatuses each having a target chamber in which an opening opening on the second mold side is formed. Is a film forming apparatus in a housing provided with a masking member for masking the base end portion of the light source and the housing portion.
A fifth aspect of the present invention is the film forming apparatus for a casing according to the fourth aspect, wherein the masking member is provided in the opening of the target chamber.
A sixth aspect of the present invention is the film forming apparatus in the casing according to the fourth or fifth aspect, wherein the masking member is formed of a ring-shaped flat body having a cylindrical portion into which a tip portion of the light source is fitted.
According to the seventh aspect of the present invention, a film forming apparatus for forming a reflective film is provided on the first mold on which the lens part molded in advance is held, while the base end of the light source is provided on the housing part held on the second mold. The part is inserted and fixed, and the film forming device is made to face the housing part based on the movement of the first and second molds, and then the resin material is injection-molded at the abutting part between the lens part and the housing part In forming the housing, the film forming apparatus includes a target chamber in which an opening that opens on one mold side is formed. The target chamber is fitted into the tip of the light source, and the base of the light source is formed. This is a film forming apparatus in a housing in which a masking member for masking an end portion and a housing portion is detachably provided.

請求項１の発明とすることにより、レンズ部の外部から光源が透けて見えることがなく、しかも、ハウジング部の内側面に成膜された反射膜が剥離するようなことがなく、意匠性に優れ、しかも、耐久性を備えた信頼性の高い燈体とすることができる。
請求項２の発明とすることにより、光源先端部とハウジング部内側面とに膜厚の異なる反射膜を容易に形成することができる。
請求項３の発明とすることにより、バルブ先端部とハウジング部内側面との反射膜を膜厚以外にも異なるようにすることができて、意匠性に優れた燈体を提供することができる。
請求項４の発明とすることにより、光源先端部とハウジング部内側面とに膜厚の異なる反射膜を容易に形成することができる。
請求項５、６の発明とすることにより、マスキング部材の装着、脱落の操作を省略できて、作業時間の短縮を図れてコスト低下に寄与できる。
請求項７の発明とすることにより、燈体成型装置を小型化できるうえ、成型工程を簡略化できる。 According to the invention of claim 1, the light source is not seen through from the outside of the lens portion, and the reflective film formed on the inner surface of the housing portion is not peeled off, thereby improving the design. An excellent and highly reliable casing having durability can be obtained.
By setting it as invention of Claim 2, the reflecting film from which film thickness differs can be easily formed in the light source front-end | tip part and a housing part inner surface.
By setting it as invention of Claim 3, the reflective film of a valve | bulb front-end | tip part and a housing part inner surface can be made to differ in addition to a film thickness, and the casing excellent in the designability can be provided.
According to the fourth aspect of the present invention, it is possible to easily form the reflection films having different film thicknesses on the light source tip and the inner surface of the housing.
According to the fifth and sixth aspects of the invention, the operation of attaching and removing the masking member can be omitted, the working time can be shortened, and the cost can be reduced.
By making it the invention of claim 7, the housing molding apparatus can be miniaturized and the molding process can be simplified.

つぎに、本発明の第一の実施の形態について、図面に基づいて説明する。
図面において、１は本発明の燈体に相当するサイドウインカーであって、該サイドウインカー１は、レンズ部２と、先端半球体状に形成されたアンバー色のバルブ３（光源であればよく、例えば発光ダイオードでも実施できる。）が組み込まれるハウジング部（本体部）４とを備えて構成されている。尚、３ａはバルブ３から伸長する端子である。 Next, a first embodiment of the present invention will be described with reference to the drawings.
In the drawings, 1 is a side blinker corresponding to the casing of the present invention, and the side blinker 1 includes a lens portion 2 and an amber bulb 3 formed in a tip hemisphere shape (if it is a light source, For example, it can also be implemented by a light emitting diode.) A housing portion (main body portion) 4 in which is incorporated. Reference numeral 3 a denotes a terminal extending from the valve 3.

さらに、本実施の形態のサイドウインカー１は、バルブ３の半球体状の先端部３ｂと、ハウジング部４の内側面４ａとに、それぞれ金属膜で構成される反射膜５Ｂ、５Ｈを形成することにより、それぞれが反射面となっている。そして、この場合に、バルブ３に形成される反射膜５Ｂの膜厚は、ハウジング部４に形成される反射膜５Ｈの膜厚よりも厚く形成されている。これによって、サイドウインカー１の非点灯時において、レンズ部２の外部からバルブ３をみたとき、バルブ３の先端部３ｂとハウジング部４の内側面４ａとが同色となって、バルブ３のアンバー色が透けて見えることがなく、しかも、ハウジング部４の反射膜５Ｈがバルブ先端部３ｂの反射膜５Ｂよりも薄い膜厚となっていて、樹脂材に対し熱収縮率の異なる反射膜５Ｈを広い面積に成膜したものでありながら反射膜５Ｈが剥離するような不具合がなく、意匠性に優れ、しかも、耐久性を備えた信頼性の高いサイドウインカー１を提供できるように構成されている。   Further, in the side blinker 1 of the present embodiment, reflection films 5B and 5H each formed of a metal film are formed on the hemispherical tip portion 3b of the bulb 3 and the inner side surface 4a of the housing portion 4, respectively. Thus, each is a reflecting surface. In this case, the thickness of the reflective film 5B formed on the bulb 3 is larger than the thickness of the reflective film 5H formed on the housing part 4. As a result, when the bulb 3 is viewed from the outside of the lens portion 2 when the side blinker 1 is not lit, the tip 3b of the bulb 3 and the inner surface 4a of the housing 4 are the same color, and the amber color of the bulb 3 The reflective film 5H of the housing part 4 is thinner than the reflective film 5B of the bulb tip part 3b, and the reflective film 5H having a different thermal contraction rate than the resin material is wide. Although the film is formed in the area, there is no problem that the reflective film 5H is peeled off, the design is excellent, and the side blinker 1 having durability and high reliability can be provided.

前記サイドウインカー１は、固定型である第一の金型６と、可動型である第二の金型７とを用い、一次の射出工程においてそれぞれ一次成型体としてレンズ部２とハウジング部４とを成型し、これら一次成型体同士を突き合わせて二次の射出工程においてレンズ部２とハウジング部４との外周部に樹脂材８を射出して一体化することによりサイドウインカー１が成型される中空体成型方法に基づいて成型されている。
そして、本発明が実施された第一、第二金型６、７を用いることで、中空体成型方法に基づくサイドウインカー１の成型過程で、ハウジング部４の内側面４ａとバルブ３の先端部３ｂとにそれぞれ膜厚の異なる反射膜５Ｂ、５Ｈを成膜（形成）することができるように構成されており、これによって、作業性よくサイドウインカー１を形成できるように設定されている。 The side blinker 1 uses a first mold 6 that is a fixed mold and a second mold 7 that is a movable mold, and in the primary injection process, the lens section 2 and the housing section 4 are respectively formed as primary molded bodies. The side turn signal 1 is molded by injecting the resin material 8 into the outer peripheral portion of the lens portion 2 and the housing portion 4 and integrating them in the secondary injection step by abutting these primary molded bodies together. Molded based on body molding method.
Then, by using the first and second molds 6 and 7 in which the present invention is implemented, the inner side surface 4a of the housing portion 4 and the distal end portion of the valve 3 in the molding process of the side blinker 1 based on the hollow body molding method. The reflective films 5B and 5H having different film thicknesses can be formed (formed) on 3b, respectively, so that the side blinker 1 can be formed with good workability.

つぎに、前記第一、第二金型６、７について説明するが、図２において上側に位置する第一金型６は固定型であり、下側に位置する第二金型７は第一金型６に対して互いに対向する方向への離接移動（図２において上下方向への移動）と、第一金型６から離間した状態で第一金型６の面に沿う方向への移動（平行移動であって、図２において左右方向への移動）とがそれぞれ自在に行えるよう、架台Ｂに組み込まれている。前記第二金型７の移動機構の詳細については、従来の中空体成型方法に用いる技術をそのまま採用することができるので、ここでの説明は省略する。
尚、金型の移動は相対的なものでよく、第一金型を可動、第二金型を移動させるように構成してもよく、また、第一、第二金型の両者を移動するように構成することもできる。さらに、金型の移動は、面に沿う方向の移動であれば直線方向の移動に限定されることはなく、軸を中心とする回転移動であってもよい。 Next, the first and second molds 6 and 7 will be described. In FIG. 2, the first mold 6 located on the upper side is a fixed mold, and the second mold 7 located on the lower side is the first mold. Separation / contact movement in a direction opposite to each other with respect to the mold 6 (movement in the vertical direction in FIG. 2) and movement in a direction along the surface of the first mold 6 while being separated from the first mold 6 (The parallel movement, that is, the movement in the left-right direction in FIG. 2) can be freely performed. About the detail of the moving mechanism of said 2nd metal mold | die 7, since the technique used for the conventional hollow body shaping | molding method can be employ | adopted as it is, description here is abbreviate | omitted.
The movement of the mold may be relative, and the first mold may be movable and the second mold may be moved, or both the first and second molds may be moved. It can also be configured as follows. Furthermore, the movement of the mold is not limited to the movement in the linear direction as long as the movement is in the direction along the surface, and may be a rotational movement around the axis.

そして、固定型である第一金型６は、右端部に位置してレンズ部２外側面を成型するための第一凹型面６ａが形成され、該第一凹型面６ａの左側に隣接してハウジング部４の内側面を成型するための第一凸型面６ｂが形成されている。さらに、第一金型６は、左側半部に位置して凹部６ｃが形成され、該凹部６ｃに、本発明の第一、第二成膜装置９、１０が左右に隣接する状態で設けられている。
一方、下方に位置する可動型である第二金型７には、右半部に位置してレンズ部２の内側面を成型するための第二凸型面７ａが形成され、左半部に位置してハウジング部４外側面を成型するための第二凹型面７ｂが形成されている。 And the 1st metal mold | die 6 which is a fixed mold | type is located in the right end part, the 1st concave mold surface 6a for shape | molding the lens part 2 outer surface is formed, and adjoins the left side of this 1st concave mold surface 6a. A first convex surface 6b for molding the inner surface of the housing part 4 is formed. Further, the first mold 6 is located in the left half, and is formed with a recess 6c, and the first and second film forming apparatuses 9 and 10 of the present invention are provided in the recess 6c so as to be adjacent to the left and right. ing.
On the other hand, the second mold 7, which is a movable mold located below, is formed with a second convex surface 7 a for molding the inner surface of the lens unit 2 located in the right half, and in the left half. A second concave surface 7b is formed for positioning and molding the outer surface of the housing part 4.

前記第一、第二成膜装置９、１０は、それぞれ凹部６ｃに一体的に固定される第一、第二ケーシング１１、１２を備えて構成されており、これら第一、第二ケーシング１１、１２には、第二金型７の第二凹型面７ｂに対向する大きさに形成された開口部を備えた凹溝形状の第一、第二ターゲット室１１ａ、１２ａがそれぞれ形成されており、これら第一、第二ターゲット室１１ａ、１２ａに、それぞれ成膜手段である第一、第二マグネトロンスパッタリング装置９ａ、１０ａが収容されている。
尚、前記第一、第二マグネトロンスパッタリング装置９ａ、１０ａは汎用のもの装置を用いることができ、真空ポンプＰ、吸気路１３、マグネット１４、反射膜５Ｂ、５Ｈ（反射膜、金属膜）となるターゲット１５（金属材料）、図示しない不活性ガス供給路等の各種部材装置を備えて構成されている。
また、本実施の形態では、第一、第二マグネトロンスパッタリング装置９ａ、１０ａのターゲット１５は同様の金属が用いられているが、異なる金属を用いる構成としてもよい。
因みに、第一、第二成膜装置９、１０に組み込まれる成膜手段としては、種々のスパッタリング装置、真空蒸着装置等による成膜手段等、適宜用いることができ、第一、第二成膜装置９、１０で異なる成膜手段を用いるように構成することもできる。 The first and second film forming apparatuses 9 and 10 include first and second casings 11 and 12 that are integrally fixed to the recess 6c, respectively. 12, the first and second target chambers 11a and 12a each having a groove shape having an opening formed in a size facing the second concave mold surface 7b of the second mold 7 are formed. The first and second target chambers 11a and 12a accommodate first and second magnetron sputtering devices 9a and 10a, respectively, which are film forming means.
The first and second magnetron sputtering devices 9a and 10a can be general-purpose devices, and serve as a vacuum pump P, an intake passage 13, a magnet 14, and reflection films 5B and 5H (reflection films and metal films). It is configured with various member devices such as a target 15 (metal material) and an inert gas supply path (not shown).
Moreover, in this Embodiment, although the same metal is used for the target 15 of the 1st, 2nd magnetron sputtering apparatus 9a, 10a, it is good also as a structure which uses a different metal.
Incidentally, as the film forming means incorporated in the first and second film forming apparatuses 9 and 10, film forming means such as various sputtering apparatuses and vacuum vapor deposition apparatuses can be used as appropriate. The apparatuses 9 and 10 can be configured to use different film forming means.

前記成膜装置９、１０のうち、左側に位置する第一成膜装置９の第一ターゲット室１１ａにおける内周面１１ｂには、第二金型７側の端部（開口端部）に位置してマスキング部材１６が一体的に固定されている。前記マスキング部材１６は、中央部に位置しバルブ３の先端部３ｂが嵌入する円筒状部１６ａと、ハウジング部４の内側面４ａを覆うリング状平板体１６ｂとにより構成されている。そして、後述するように、第一成膜装置９をバルブ３が組み込まれた状態のハウジング部４が保持された第二金型７の第二凹型面７ｂに突き当てた場合に、マスキング部材円筒状部１６ａにバルブ３の先端部３ｂが嵌入し、バルブ３の基端部およびハウジング部４の内側面が、円筒状部１６ａおよびリング状平板体１６ｂとによりマスキングされ、これによって、ターゲット室１１ａ側にバルブ３の先端部３ｂのみが露出して、該部位の成膜ができるように設定されている。   Among the film forming apparatuses 9 and 10, the inner peripheral surface 11b of the first target chamber 11a of the first film forming apparatus 9 located on the left side is positioned at the end (opening end) on the second mold 7 side. Thus, the masking member 16 is fixed integrally. The masking member 16 includes a cylindrical portion 16a that is positioned at the center and into which the distal end portion 3b of the valve 3 is fitted, and a ring-shaped flat body 16b that covers the inner side surface 4a of the housing portion 4. As will be described later, when the first film forming apparatus 9 is abutted against the second concave mold surface 7b of the second mold 7 holding the housing part 4 in which the valve 3 is incorporated, the masking member cylinder The distal end portion 3b of the bulb 3 is fitted into the cylindrical portion 16a, and the proximal end portion of the bulb 3 and the inner side surface of the housing portion 4 are masked by the cylindrical portion 16a and the ring-shaped flat plate 16b, thereby the target chamber 11a. Only the tip 3b of the valve 3 is exposed to the side, and the film is formed at the site.

つぎに、サイドウインカー１の製造工程手順について、図２〜６の図面を用いて説明する。
図２は、第一金型６と第二金型７とが離間して配設されているが、まず、第一凹型面６ａと第二凸型面７ａとを対向させ、第一凸型面６ｂと第二凹型面７ｂとを対向させ、この状態から第二金型７を第一金型６側に移動して、第一凹型面６ａと第二凸型面７ａ、第一凸型面６ｂと第二凹型面７ｂとをそれぞれ互いに突き合わせた状態とする。そして、前記状態において樹脂材を射出して、図３（Ａ）に示すように、一次成型体としてのレンズ部２とハウジング部４とをそれぞれ成型する（一次の射出工程）。このとき、第一金型６に組み込まれた第一、第二成膜装置９、１０は、第二金型７の各型面７ａ、７ｂとは位置ズレした状態となっていて第二金型７側に干渉することはなく、また、マグネトロンスパッタリング装置９ａ、１０ａが作動することはない。 Below, the manufacturing process procedure of the side blinker 1 is demonstrated using drawing of FIGS.
In FIG. 2, the first mold 6 and the second mold 7 are spaced apart from each other. First, the first concave mold surface 6a and the second convex mold surface 7a are opposed to each other. The surface 6b and the second concave mold surface 7b are opposed to each other, and the second mold 7 is moved to the first mold 6 side from this state, and the first concave mold surface 6a, the second convex mold surface 7a, and the first convex mold The surface 6b and the second concave surface 7b are brought into contact with each other. And in the said state, the resin material is inject | emitted and as shown to FIG. 3 (A), the lens part 2 and the housing part 4 as a primary molded object are each shape | molded (primary injection process). At this time, the first and second film forming apparatuses 9 and 10 incorporated in the first mold 6 are in a state of being displaced from the respective mold surfaces 7a and 7b of the second mold 7, and thus the second mold. There is no interference with the mold 7 side, and the magnetron sputtering devices 9a and 10a do not operate.

前記状態から、図３（Ｂ）に示すように、第二金型７が第一金型６から離間する方向に移動するが、このとき、レンズ部２は第一金型６側に設けられた吸引手段により第一金型６に保持される状態で第二金型７から脱型され、ハウジング部４は第一金型６から脱型されて第二金型７側に保持される（離型工程）ように型設計されている。
そして、前記状態から、図４（Ａ）に示すように、第二金型７を左方に移動して、第一金型６の第一成膜装置９に第二金型７に保持されているハウジング部４を対向させる位置関係とする。この状態において、端子部材３ａが組み込まれたバルブ３をハウジング部４に挿入組み込みして固定し、続いて、本発明の第一成膜工程を実施するべく、第二金型７を第一金型６に近接する方向に移動し、図４（Ｂ）に示すように、第一金型６の第一ターゲット室１１ａの下端面１１ｃと第二金型７の第二凹型面７ｂの上端面とを突き合わせる。この突き合わせ移動において、ハウジング部４に組み込まれたバルブ３の先端部３ｂは、第一ターゲット室１１ａに設けられたマスキング部材１６の円筒状部１６ａに自動的に嵌入するように構成されており、これによって、マスキング部材１６をバルブ３に組み込む工程を省略できるように構成されている。
尚、第一成膜工程において、第二成膜装置１０と第二金型７の第二凸型面７ａとは近接対向するが、互いに干渉することはないように設定されている。 From the above state, as shown in FIG. 3B, the second mold 7 moves away from the first mold 6. At this time, the lens portion 2 is provided on the first mold 6 side. The housing part 4 is removed from the first mold 6 and held on the second mold 7 side while being held by the first mold 6 by the suction means. The mold is designed as in the mold release process.
Then, from the above state, as shown in FIG. 4A, the second mold 7 is moved to the left and is held by the second mold 7 in the first film forming apparatus 9 of the first mold 6. It is set as the positional relationship which makes the housing part 4 which opposes oppose. In this state, the valve 3 incorporating the terminal member 3a is inserted and assembled into the housing portion 4 and fixed, and then the second mold 7 is placed in the first mold in order to carry out the first film forming step of the present invention. 4B, the upper end surface of the first target chamber 11a of the first mold 6 and the upper surface of the second concave mold surface 7b of the second mold 7 are moved. And match. In this butting movement, the tip 3b of the valve 3 incorporated in the housing part 4 is configured to automatically fit into the cylindrical part 16a of the masking member 16 provided in the first target chamber 11a. Thus, the step of incorporating the masking member 16 into the valve 3 can be omitted.
In the first film forming step, the second film forming apparatus 10 and the second convex surface 7a of the second mold 7 are close to each other but set so as not to interfere with each other.

そして、前記状態になるとマスキング部材１６によりバルブ３の基端部とハウジング部４の内側面とがマスキングされた状態となり、第一マグネトロンスパッタリング装置９ａを予め設定される時間のあいだ作動することにより、第一成膜工程が実施され、バルブ先端部３ｂにのみに所定の膜厚の反射膜５Ｂが形成されるように設定されている。
前記第一成膜工程が終了すると、ハウジング部４が保持される第二金型７を第一金型６から離間する方向に移動させるが、このとき、バルブ３は、ハウジング部４とともに第一成膜装置９を構成する第一ターゲット室１１ａから下動することにより、マスキング部材１６の円筒状部１６ａから自動的に抜け出すように構成され、これによって、マスキング部材１６の取り外し工程を省略できるように構成されている。 And when it becomes the said state, it will be in the state by which the base end part of the valve | bulb 3 and the inner surface of the housing part 4 were masked by the masking member 16, and by operating the 1st magnetron sputtering apparatus 9a for the preset time, The first film forming step is performed, and the reflective film 5B having a predetermined film thickness is set only on the valve tip 3b.
When the first film forming step is completed, the second mold 7 holding the housing part 4 is moved in a direction away from the first mold 6. At this time, the valve 3 is moved together with the housing part 4 to the first. By being moved down from the first target chamber 11a constituting the film forming apparatus 9, the masking member 16 is configured to automatically come out of the cylindrical portion 16a, so that the step of removing the masking member 16 can be omitted. It is configured.

そして、前記状態から第二金型７を右方に移動させ、図５（Ａ）に示すように、ハウジング部４が第二成膜装置１０に対向する位置関係とする。この状態において、本発明の第二成膜工程を実施するべく、図５（Ｂ）に示すように、第二金型７を第一金型６に近接する方向に移動し、第一金型６の第二ターゲット室１２ａの下端面１２ｂと第二金型７の第二凹型面７ｂの上端面とを突き合わせる。この状態において、第二マグネトロンスパッタリング装置１０ａが予め設定される時間のあいだ作動することにより、第二成膜工程が実施され、予め第一成膜工程により反射膜５Ｂが所定の膜厚で形成されたバルブ先端部３ｂと、反射膜が形成されていないハウジング部４の内側面４ａとの両者に、所定の膜厚の反射膜５Ｂ、５Ｈが形成されるように設定されている。これによって、バルブ先端部３ｂは、第一成膜工程により形成された反射膜５Ｂと第二成膜工程により形成される反射膜５Ｂとにより、ハウジング部内側面４ａに形成される反射膜５Ｈよりも膜厚の厚い反射膜５Ｂが形成されるように設定されている。
ここで、第一、第二成膜工程における成膜時間は、必ずしも同じ時間にする必要はなく、バルブ先端部３ｂとハウジング部内側面４ａとに必要な膜厚となるよう適宜設定することができる。
尚、第二成膜工程において、第一金型６の第一凸型面６ｂと第二金型７の第二凸型面７ａとは近接対向するが、互いに干渉することはないように設定されている。 And the 2nd metal mold | die 7 is moved to the right from the said state, and it is set as the positional relationship which the housing part 4 opposes the 2nd film-forming apparatus 10, as shown to FIG. 5 (A). In this state, in order to carry out the second film forming step of the present invention, as shown in FIG. 5B, the second mold 7 is moved in the direction close to the first mold 6, and the first mold is moved. 6, the lower end surface 12 b of the second target chamber 12 a and the upper end surface of the second concave mold surface 7 b of the second mold 7 are butted together. In this state, the second magnetron sputtering apparatus 10a operates for a preset time, whereby the second film forming step is performed, and the reflective film 5B is formed in advance with a predetermined film thickness by the first film forming step. Further, reflection films 5B and 5H having a predetermined film thickness are formed on both the bulb tip portion 3b and the inner side surface 4a of the housing portion 4 on which no reflection film is formed. As a result, the bulb tip 3b has a reflection film 5B formed by the first film formation step and a reflection film 5B formed by the second film formation step, which is more than the reflection film 5H formed on the inner side surface 4a of the housing portion. The thick reflective film 5B is set to be formed.
Here, the film formation time in the first and second film formation steps does not necessarily have to be the same time, and can be appropriately set so as to have a film thickness required for the valve tip portion 3b and the housing inner surface 4a. .
In the second film forming step, the first convex surface 6b of the first mold 6 and the second convex surface 7a of the second mold 7 are close to each other but set so as not to interfere with each other. Has been.

このように、第一、第二成膜工程が実施されて成膜された後は、第一金型６に保持されている一次成型体としてのレンズ部２に対し、第二金型７に保持され、第一、第二成膜工程が実施された一次成型体としてのハウジング部４とを対向させ、図６に示すように、第二金型７を第一金型６側に近接する方向に移動させ、これら第一、第二金型６、７同士を突き合わせてレンズ部２とハウジング部４とを突き合わせた状態とする。そして、レンズ部２とハウジング部４との突き合わせ部の外周縁部に、前述したように、樹脂材８を射出（二次の射出工程）することにより、レンズ部２とハウジング部４とを一体化（接着）してサイドウインカー１を形成する。因みに、二次の射出工程において、第一、第二成膜装置９、１０は、第二金型７とは位置ズレしており干渉することはないように設定されている。
前記成型されたサイドウインカー１は、第二金型７を第一金型６から離間させた状態で取り出されるが、この後、第二金型７を右方に移動させることにより、レンズ部２とハウジング部４とを一次射出する状態となり、以降、この工程を繰り返すことにより、順次サイドウインカー１が成型されるように構成されている。 As described above, after the first and second film forming steps are performed, the second mold 7 is formed on the lens unit 2 as the primary molded body held by the first mold 6. The housing 4 as a primary molded body that is held and subjected to the first and second film-forming steps is opposed to each other, and as shown in FIG. 6, the second mold 7 is brought close to the first mold 6 side. The lens part 2 and the housing part 4 are brought into contact with each other by moving the first and second molds 6 and 7 together. Then, as described above, the resin material 8 is injected (secondary injection process) to the outer peripheral edge portion of the abutting portion between the lens portion 2 and the housing portion 4 so that the lens portion 2 and the housing portion 4 are integrated. The side blinker 1 is formed by forming (bonding). Incidentally, in the secondary injection process, the first and second film forming apparatuses 9 and 10 are set so as not to interfere with the second mold 7 because they are misaligned.
The molded side blinker 1 is taken out with the second mold 7 being separated from the first mold 6, but thereafter, the lens unit 2 is moved by moving the second mold 7 to the right. Then, the side blinker 1 is sequentially molded by repeating this process.

叙述の如く構成された本形態において、射出により成型されたサイドウインカー１は、ハウジング部４の内側面４ａとアンバー色のバルブ３の先端部３ｂとにそれぞれ反射膜５が成膜されているが、バルブ３の先端部３ｂは、第一成膜装置９による第一成膜工程において所定の膜厚の反射膜５Ｂが形成され、さらに、第二成膜装置１０による第二成膜工程において再度所定の膜厚の反射膜５Ｂが形成されるため、バルブ先端部３ｂの反射膜５Ｂの膜厚は、ハウジング部４の内側面４ａに形成される反射膜５Ｈよりも厚くなっている。この結果、サイドウインカー１の非点灯時において、レンズ部２の外部からバルブ３をみたとき、バルブ３の先端部３ｂとハウジング部４の内側面４ａとが同色となって、バルブ３のアンバー色が透けて見えることがなく、しかも、広範囲に成膜されたハウジング部内側面４ａの反射膜５Ｈが熱収縮率の差から剥離されてしまうような不具合がなく、意匠性に優れ、しかも、耐久性を備えた信頼性の高いサイドウインカー１とすることができる。   In the present embodiment configured as described, the side blinker 1 molded by injection has a reflective film 5 formed on the inner side surface 4a of the housing portion 4 and the tip portion 3b of the amber-colored bulb 3, respectively. The tip 3b of the valve 3 is formed with a reflective film 5B having a predetermined film thickness in the first film forming process by the first film forming apparatus 9, and again in the second film forming process by the second film forming apparatus 10. Since the reflective film 5B having a predetermined film thickness is formed, the film thickness of the reflective film 5B at the bulb tip 3b is thicker than the reflective film 5H formed on the inner side surface 4a of the housing part 4. As a result, when the bulb 3 is viewed from the outside of the lens portion 2 when the side blinker 1 is not lit, the tip portion 3b of the bulb 3 and the inner side surface 4a of the housing portion 4 are the same color, and the amber color of the bulb 3 In addition, the reflective film 5H of the housing inner side surface 4a formed over a wide range is free from the problem of peeling off due to the difference in thermal shrinkage rate, and has excellent design and durability. It can be set as the reliable side blinker 1 provided with.

このように、本発明が実施されたサイドウインカー１は、ハウジング部内側面４ａとともにバルブ３の先端部３ｂに反射膜５Ｈ、５Ｂが成膜されるものであるが、この場合に、成膜装置として第一、第二成膜装置９、１０を用い、第一成膜装置９のターゲット室１１ａには、バルブ先端部３ｂのみを成膜するためのマスキング部材１６を設ける構成としたので、ハウジング部４が保持された第一金型７を第一金型６に設けた第一、第二成膜装置９、１０に順次対向させて成膜することで、バルブ先端部３ｂには厚い反射膜５Ｂを形成し、ハウジング部内側面４ａにはそれよりも薄い反射膜５Ｈを簡単に形成することが可能となる。   As described above, the side blinker 1 in which the present invention is implemented is such that the reflection films 5H and 5B are formed on the distal end portion 3b of the bulb 3 together with the housing inner side surface 4a. Since the first and second film forming devices 9 and 10 are used and the masking member 16 for forming only the valve tip 3b is provided in the target chamber 11a of the first film forming device 9, the housing portion 4 is formed in such a manner that the first die 7 holding 4 is sequentially opposed to the first and second film forming devices 9 and 10 provided on the first die 6, so that a thick reflective film is formed on the bulb tip 3 b. 5B is formed, and a thinner reflective film 5H can be easily formed on the inner side surface 4a of the housing portion.

しかも、バルブ３の基端部とハウジング部内側面４ａとをマスキングするマスキング部材１６は、ターゲット室１１ａの開口部に設けられる一方、マスキング部材１６は、バルブ３の先端部が嵌入する円筒状部１６ａが形成されたものにしたので、バルブ３を組み込んだハウジング部４をターゲット室１１ａに離接することで、マスキング部材１６を自動的にバルブ３の先端部３ｂに装着、脱落させることができ、マスキング部材１６を取り付けたり、取り外したりする操作が一切不要になって、作業性よくサイドウインカー１を成型することができ、作業時間の短縮を図れてコスト低下に寄与できる。   In addition, the masking member 16 for masking the base end portion of the valve 3 and the inner side surface 4a of the housing portion is provided in the opening of the target chamber 11a, while the masking member 16 is a cylindrical portion 16a into which the distal end portion of the valve 3 is fitted. Therefore, the masking member 16 can be automatically attached to and removed from the tip portion 3b of the valve 3 by separating the housing portion 4 incorporating the valve 3 from the target chamber 11a. The operation of attaching or removing the member 16 is completely unnecessary, the side blinker 1 can be molded with good workability, and the working time can be shortened and the cost can be reduced.

尚、本発明は前記実施の形態に限定されないことは勿論であって、図７、８に示す第二の実施の形態のようにすることもできる。尚、第二の実施の形態において、第一、第二成膜工程は、固定側の第一金型６側に設けられた一つの成膜装置１７により実施するように構成されており、成膜装置１７以外の基本的な構成は、前記第一の実施の形態と同様であり、同様の部材については同様の符号を付すことで説明を省略する。
前記第二の実施の形態において、前記成膜装置１７は、第一金型６に形成される凹部６ｃに設けられるケーシング１８を備えて構成されている。前記ケーシング１８には、第二金型７の第二凹型面７ｂに対向する大きさの開口部を備えた凹溝形状のターゲット室１８ａが形成されており、該ターゲット室１８ａに成膜手段であるマグネトロンスパッタリング装置１７ａが収容（内装）されている。尚、マグネトロンスパッタリング装置１７ａは、真空ポンプＰ、吸気路１３、マグネット１４、反射膜５Ｂ、５Ｈ（反射膜、金属膜）となるターゲット１５、図示しない不活性ガス供給路等の各種部材装置を備えて構成されている。 Of course, the present invention is not limited to the above-described embodiment, and may be the second embodiment shown in FIGS. In the second embodiment, the first and second film forming steps are configured to be performed by one film forming apparatus 17 provided on the first mold 6 side on the fixed side. The basic configuration other than the membrane device 17 is the same as that of the first embodiment, and the same members are denoted by the same reference numerals and the description thereof is omitted.
In the second embodiment, the film forming apparatus 17 includes a casing 18 provided in a recess 6 c formed in the first mold 6. The casing 18 is formed with a groove-shaped target chamber 18a having an opening having a size facing the second concave mold surface 7b of the second mold 7. The target chamber 18a is formed with a film forming means. A certain magnetron sputtering apparatus 17a is accommodated (interior). The magnetron sputtering apparatus 17a includes various member devices such as a vacuum pump P, an intake path 13, a magnet 14, a target 15 serving as a reflection film 5B, 5H (reflection film, metal film), an inert gas supply path (not shown), and the like. Configured.

そして、ターゲット室１８ａの開口端側の内周面１８ｂにはマスキング部材１９が設けられるが、前記マスキング部材１９は、前記第一の実施の形態のマスキング部材と同様に中央部にバルブ３の先端部３ｂが嵌入する円筒状部１９ａと、ハウジング部４の内側面４ａを覆うリング状平板体１９ｂとを備えて構成されるが、本実施の形態のマスキング部材１９は、二つ割り状に分割されて左右の分割体１９ｃ、１９ｄとなっており、各分割体１９ｃ、１９ｄは、それぞれターゲット室内周面１８ｂに対し、枢支軸２０を支点として揺動自在に組み込まれ、各分割体１９ｃ、１９ｄがターゲット室１８ａの開口を塞ぎ、円筒状部１９ａとリング状平板体１９ｂとを形成する倒伏姿勢と、該倒伏姿勢から上方揺動し、各分方謡１９ｃ、１９ｄがターゲット室１８ａの内周面に沿い、ターゲット室の開口を開放状態とする起立姿勢とに揺動変姿するように構成されている。   A masking member 19 is provided on the inner peripheral surface 18b on the opening end side of the target chamber 18a. The masking member 19 is provided at the center of the tip of the valve 3 in the same manner as the masking member in the first embodiment. The cylindrical portion 19a into which the portion 3b is fitted and the ring-shaped flat body 19b that covers the inner side surface 4a of the housing portion 4 are configured, but the masking member 19 of the present embodiment is divided into two parts. The left and right divided bodies 19c and 19d are respectively incorporated into the target chamber inner peripheral surface 18b so as to be swingable with the pivot shaft 20 as a fulcrum, and the divided bodies 19c and 19d are The lying posture that closes the opening of the target chamber 18a to form the cylindrical portion 19a and the ring-shaped flat plate 19b, and swings upward from the lying posture. Along the inner peripheral surface of the target chamber 18a, and is configured to swing Hensugata to a standing position that the opening of the target chamber open.

そして、このものでは、予め第一金型６の第一凹型面６ａと第二金型７の第二凸型面７ａ、第一金型の第一凸型面６ｂと第二金型７の第二凹型面７ｂとをそれぞれ対向せしめて一次射出してレンズ部２とハウジング部４とを成型した後、図８に示すように、第二金型７を移動して第二凹型面７ｂに保持されたハウジング部４を、成膜装置１７のターゲット室１８ａに突き当て、マスキング部材１９を仮想線で示す倒伏姿勢とすることでバルブ３の基端部とハウジング部内側面４ａとをマスキングし、この状態において、マグネトロンスパッタリング装置１７ａを予め設定される時間のあいだ作動することにより、バルブ３の先端部３ｂに所定の膜厚の反射膜５Ｂが形成される（第一成膜工程）ように設定されている。その後、マスキング部材１９を実線で示す起立姿勢とし、ターゲット室１８ａの開口を開放し、この状態において、マグネトロンスパッタリング装置１７ａを予め設定される時間のあいだ作動することにより、バルブ３の先端部３ｂおよびハウジング部内側面４ａとに所定の膜厚の反射膜５Ｂ、５Ｈが形成される（第二成膜工程）ように設定されている。   In this case, the first concave mold surface 6a of the first mold 6 and the second convex mold surface 7a of the second mold 7, and the first convex mold surface 6b of the first mold 6 and the second mold 7 are preliminarily provided. First, the lens part 2 and the housing part 4 are molded with the second concave mold surface 7b facing each other, and then the second mold 7 is moved to the second concave mold surface 7b as shown in FIG. The held housing part 4 is abutted against the target chamber 18a of the film forming apparatus 17, and the base end part of the valve 3 and the inner side surface 4a of the housing part are masked by setting the masking member 19 in a lying posture shown by phantom lines. In this state, the magnetron sputtering apparatus 17a is operated for a preset time so that the reflective film 5B having a predetermined film thickness is formed on the tip 3b of the bulb 3 (first film forming step). Has been. Thereafter, the masking member 19 is set in a standing posture indicated by a solid line, the opening of the target chamber 18a is opened, and in this state, the magnetron sputtering apparatus 17a is operated for a preset time, whereby the tip 3b of the valve 3 and The reflective film 5B, 5H having a predetermined film thickness is formed on the inner side surface 4a of the housing part (second film forming step).

このようにすることにより、バルブ３の先端面３ｂには、ハウジング部内側面４ａの反射膜５Ｈよりも厚い反射膜５Ｂを形成することができて、バルブ３のアンバー色が透けて見えることがなく、しかも、広範囲に成膜されたハウジング部４の反射膜５Ｈが熱収縮率の差から剥離されてしまうような不具合がなく、意匠性に優れ、しかも、耐久性を備えた信頼性の高いサイドウインカー１とすることができる。
しかも、この場合では、第一金型６に設けられる成膜装置１７を一つにすることができてターンランプ２の成型装置を小型化できるうえ、第二金型７の移動回数を減らすことができるという利点を得ることができる。 By doing so, a reflective film 5B thicker than the reflective film 5H on the inner side surface 4a of the housing portion can be formed on the tip surface 3b of the bulb 3, so that the amber color of the bulb 3 is not seen through. In addition, the reflective film 5H of the housing part 4 formed over a wide range is free from the problem of peeling off due to the difference in thermal shrinkage rate, is excellent in design, and has a durable side with high reliability. The turn signal 1 can be obtained.
In addition, in this case, the film forming apparatus 17 provided in the first mold 6 can be integrated into one, so that the molding apparatus for the turn lamp 2 can be miniaturized and the number of times of movement of the second mold 7 can be reduced. The advantage of being able to

尚、第一成膜工程と第二成膜工程とで異なる金属材料を用いる場合では、第一、第二成膜工程を前記第一の実施の形態とは逆に第二成膜工程を先行し、第一成膜工程を後行して成膜するようにしてもよく、何れの場合も、バルブ先端部とハウジング部内側面との反射膜を膜厚だけでなく、色や特性等を異なるようにすることができて、意匠性に優れたものにできる。 In the case where different metal materials are used in the first film forming process and the second film forming process, the first film forming process is preceded by the second film forming process, contrary to the first embodiment. However, the film formation may be performed after the first film formation process. In any case, the reflective film on the valve tip and the inner surface of the housing is different not only in film thickness but also in color, characteristics, etc. And can be made excellent in design.

サイドウインカーの断面図である。It is sectional drawing of a side blinker. サイドウインカーの成型手順を説明する概略図である。It is the schematic explaining the shaping | molding procedure of a side blinker. 図３（Ａ）、（Ｂ）はそれぞれサイドウインカーの成型手順を説明する概略図である。3 (A) and 3 (B) are schematic diagrams for explaining the side blinker molding procedure. 図４（Ａ）、（Ｂ）はそれぞれサイドウインカーの成型手順を説明する概略図である。4 (A) and 4 (B) are schematic diagrams for explaining the side blinker molding procedure. 図５（Ａ）、（Ｂ）はそれぞれサイドウインカーの成型手順を説明する概略図である。5 (A) and 5 (B) are schematic diagrams for explaining the side blinker molding procedure. サイドウインカーの成型手順を説明する概略図である。It is the schematic explaining the shaping | molding procedure of a side blinker. 第二の実施の形態におけるサイドウインカーの成型手順を説明する概略図である。It is the schematic explaining the shaping | molding procedure of the side blinker in 2nd embodiment. 第二の実施の形態における成膜工程を説明する概略図である。It is the schematic explaining the film-forming process in 2nd embodiment.

符号の説明Explanation of symbols

１ サイドウインカー
２ レンズ部
２ａ 内側面
３ バルブ
３ｂ 先端部
３ｃ 基端側部位
４ ハウジング部
４ａ 内側面
５Ｂ 反射膜
５Ｈ 反射膜
６ 第一金型
７ 第二金型
９ 第一成膜装置
９ａ 第一マグネトロンスパッタリング装置
１０ 第二成膜装置
１０ａ 第二マグネトロンスパッタリング装置
１１ａ 第一ターゲット室
１６ マスキング部材
１６ａ 円筒状部
１６ｂ リング状平板体 DESCRIPTION OF SYMBOLS 1 Side blinker 2 Lens part 2a Inner side surface 3 Valve | bulb 3b Tip part 3c Base end side part 4 Housing part 4a Inner side surface 5B Reflective film 5H Reflective film 6 First mold 7 Second mold 9 First film-forming apparatus 9a First Magnetron sputtering apparatus 10 Second film forming apparatus 10a Second magnetron sputtering apparatus 11a First target chamber 16 Masking member 16a Cylindrical portion 16b Ring-shaped flat body

Claims (7)

予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて光源の先端部とハウジング部の内側面とを成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して形成される燈体であって、光源の膜厚は、ハウジング部の膜厚よりも厚く成膜されている燈体。   A film forming apparatus for forming a reflective film is provided on a first mold that holds a pre-molded lens part, while a base end of a light source is inserted and fixed in a housing part that is held by a second mold. First, based on the movement of the mold of the second mold, the film forming apparatus is opposed to the housing part to form a film on the front end part of the light source and the inner side surface of the housing part. A casing formed by injection molding of a resin material, wherein the thickness of the light source is greater than that of the housing. 予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、成膜装置による成膜工程は、光源の先端部のみを成膜する第一成膜工程と、ハウジング部の内側面と光源の先端部とを同時に成膜する第二成膜工程とが設けられている燈体における成膜方法。   A film forming apparatus for forming a reflective film is provided on a first mold that holds a pre-molded lens part, while a base end of a light source is inserted and fixed in a housing part that is held by a second mold. First, film formation is performed with the film forming apparatus facing the housing portion based on the movement of the second mold, and then a resin material is injection-molded at the abutting portion between the lens portion and the housing portion to form a housing. In this case, the film forming process by the film forming apparatus includes a first film forming process for forming only the tip of the light source and a second film forming process for forming the inner surface of the housing part and the tip of the light source at the same time. A film forming method in a provided casing. 第一成膜工程は、第二成膜工程において成膜される金属材料とは異なる金属材料を用いて成膜するように構成されている請求項２に記載の燈体における成膜方法。   The film forming method for a housing according to claim 2, wherein the first film forming step is configured to form a film using a metal material different from the metal material formed in the second film forming step. 予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、前記成膜装置は、第二金型側が開口する開口部が形成されたターゲット室を備えた第一、第二成膜装置で構成され、一方の成膜装置には、光源の基端部とハウジング部をマスキングするマスキング部材が設けられている燈体における成膜装置。   A film forming apparatus for forming a reflective film is provided on a first mold that holds a pre-molded lens part, while a base end of a light source is inserted and fixed in a housing part that is held by a second mold. First, film formation is performed with the film forming apparatus facing the housing portion based on the movement of the second mold, and then a resin material is injection-molded at the abutting portion between the lens portion and the housing portion to form a housing. In this case, the film forming apparatus is composed of first and second film forming apparatuses each having a target chamber in which an opening opening on the second mold side is formed, and one film forming apparatus includes a base end of a light source. A film forming apparatus in a housing provided with a masking member for masking the part and the housing part. マスキング部材は、ターゲット室の開口部に設けられている請求項４に記載の燈体における成膜装置。   The film forming apparatus for a casing according to claim 4, wherein the masking member is provided in an opening of the target chamber. マスキング部材は、光源の先端部が嵌入する円筒状部を備えたリング状平板体で構成されている請求項４または５に記載の燈体における成膜装置。   6. The film forming apparatus for a casing according to claim 4, wherein the masking member is formed of a ring-shaped flat body having a cylindrical portion into which a front end portion of a light source is fitted. 予め型成形されたレンズ部が保持される第一金型に反射膜を形成する成膜装置を設ける一方、第二金型に保持されるハウジング部に光源の基端部を挿入固定し、第一、第二金型の型移動に基づいて成膜装置をハウジング部に対向させて成膜し、その後、レンズ部とハウジング部との突き合わせ部に樹脂材を射出成形して燈体を形成するにあたり、前記成膜装置は、一方の金型側が開口する開口部が形成されたターゲット室を備え、該ターゲット室には、光源の先端部に嵌入し、光源の基端部とハウジング部とをマスキングするマスキング部材が着脱自在に設けられている燈体における成膜装置。   A film forming apparatus for forming a reflective film is provided on a first mold that holds a pre-molded lens part, while a base end of a light source is inserted and fixed in a housing part that is held by a second mold. First, film formation is performed with the film forming apparatus facing the housing portion based on the movement of the second mold, and then a resin material is injection-molded at the abutting portion between the lens portion and the housing portion to form a housing. In this case, the film forming apparatus includes a target chamber in which an opening that opens on one mold side is formed. The target chamber is fitted into a distal end portion of a light source, and a base end portion of the light source and a housing portion are connected to each other. A film forming apparatus for a housing in which a masking member for masking is detachably provided.
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